Comparison of determinants of frame size in older adults
1993
Mitchell, M.C.
Accurate designations of body frame size can enhance the interpretation of height-weight tables. Determinants of frame size should be quantifiable, reflective of skeletal dimensions, and not influenced by adiposity. Visual assessment, the height:wrist circumference ratio, elbow breadth by 1983 and 1984 standards, and Frame Index 2 were studied in 300 healthy adults over 64 years of age. Distribution of frame size across small, medium, and large categories revealed that visual assessment and height:wrist circumference ratio agreed with designations of elbow breadth measurements for less than 50% of the population. Highest levels of agreement occurred between elbow breadth (1984) and Frame Index 2. For men, high partial correlations between height:wrist circumference ratio and subscapular fatfold measurements corrected for age and arm muscle area indicated that measurement may be affected by body fat. Lowest correlations with subscapular fatfolds were for wrist and ankle breadths for women and ankle breadth for men. Elbow breadth and Frame Index 2 had low negative correlations with subscapular skinfold for men but much higher values for women. Elbow breadth measurements are widely used as frame size determinants, but for women, at least, ankle and wrist breadths meet the criterion of low associations with body fatness.
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